Question

Let f(x) = x – 3 and g(x) = x2

Find f(g(4)).
A. 1
B. 9
C. 13
D. 16

Answer 1

Option C is the correct answer.


`f(x)=x-3 \\ \\ g(x)= x^(2)`

First we have to find g(4) and then use that value in f(g(4)) to find the value of the expression as shown below:


`g(4)=(4)^(2) \\ \\ g(4)=16 \\ \\ f(g(4))=f(16) \\ \\ f(g(4))=16-3 \\ \\ f(g(4))=13`